GB2312932B - Rate shaping plunger/piston assembly for a hydraulically actuated fuel injector - Google Patents

Rate shaping plunger/piston assembly for a hydraulically actuated fuel injector

Info

Publication number
GB2312932B
GB2312932B GB9707154A GB9707154A GB2312932B GB 2312932 B GB2312932 B GB 2312932B GB 9707154 A GB9707154 A GB 9707154A GB 9707154 A GB9707154 A GB 9707154A GB 2312932 B GB2312932 B GB 2312932B
Authority
GB
United Kingdom
Prior art keywords
fuel injector
piston assembly
hydraulically actuated
rate shaping
actuated fuel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
GB9707154A
Other versions
GB2312932A (en
GB9707154D0 (en
Inventor
Gregory G Hafner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Caterpillar Inc
Original Assignee
Caterpillar Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Caterpillar Inc filed Critical Caterpillar Inc
Publication of GB9707154D0 publication Critical patent/GB9707154D0/en
Publication of GB2312932A publication Critical patent/GB2312932A/en
Application granted granted Critical
Publication of GB2312932B publication Critical patent/GB2312932B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M57/00—Fuel-injectors combined or associated with other devices
    • F02M57/02—Injectors structurally combined with fuel-injection pumps
    • F02M57/022—Injectors structurally combined with fuel-injection pumps characterised by the pump drive
    • F02M57/025—Injectors structurally combined with fuel-injection pumps characterised by the pump drive hydraulic, e.g. with pressure amplification
    • F02M57/026—Construction details of pressure amplifiers, e.g. fuel passages or check valves arranged in the intensifier piston or head, particular diameter relationships, stop members, arrangement of ports or conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M57/00—Fuel-injectors combined or associated with other devices
    • F02M57/02—Injectors structurally combined with fuel-injection pumps
    • F02M57/022—Injectors structurally combined with fuel-injection pumps characterised by the pump drive
    • F02M57/025—Injectors structurally combined with fuel-injection pumps characterised by the pump drive hydraulic, e.g. with pressure amplification
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
    • F02M59/102—Mechanical drive, e.g. tappets or cams
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
    • F02M59/105—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive hydraulic drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
GB9707154A 1996-05-09 1997-04-08 Rate shaping plunger/piston assembly for a hydraulically actuated fuel injector Expired - Fee Related GB2312932B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/644,023 US5655501A (en) 1996-05-09 1996-05-09 Rate shaping plunger/piston assembly for a hydraulically actuated fuel injector

Publications (3)

Publication Number Publication Date
GB9707154D0 GB9707154D0 (en) 1997-05-28
GB2312932A GB2312932A (en) 1997-11-12
GB2312932B true GB2312932B (en) 2000-03-01

Family

ID=24583127

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9707154A Expired - Fee Related GB2312932B (en) 1996-05-09 1997-04-08 Rate shaping plunger/piston assembly for a hydraulically actuated fuel injector

Country Status (3)

Country Link
US (1) US5655501A (en)
JP (1) JPH1047194A (en)
GB (1) GB2312932B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110650762A (en) * 2017-04-19 2020-01-03 梅特罗诺姆保健公司 Inserter for analyte sensor

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5743237A (en) * 1997-01-28 1998-04-28 Caterpillar Inc. Hydraulically-actuated fuel injector with needle valve operated spill passage
AUPO501897A0 (en) * 1997-02-10 1997-03-06 Invent Engineering P/L Hydraulically actuated electronic fuel injection system
US5878720A (en) * 1997-02-26 1999-03-09 Caterpillar Inc. Hydraulically actuated fuel injector with proportional control
US5871155A (en) * 1997-06-10 1999-02-16 Caterpillar Inc. Hydraulically-actuated fuel injector with variable rate return spring
DE19738804B4 (en) * 1997-09-05 2004-07-22 Robert Bosch Gmbh Fuel injection device for internal combustion engines
EP0962648A1 (en) * 1998-06-04 1999-12-08 Wolfgang Dr. Heimberg Fuel injection apparatus
US6119959A (en) * 1999-02-10 2000-09-19 Caterpillar Inc. Fuel injector with controlled spill to produce split injection
US6286483B1 (en) * 1999-04-19 2001-09-11 International Truck And Engine Corporation Fuel injector with actuation pressure delay device
US6347614B1 (en) 1999-07-23 2002-02-19 Lawrence W. Evers Mechanical fuel injection system
US6354271B1 (en) * 2000-12-11 2002-03-12 Caterpillar Inc. Hydraulically-actuated fuel injector with enhanced peak injection pressure and stepped top intensifier
US6913212B2 (en) * 2001-01-17 2005-07-05 Siemens Diesel Systems Technology, Llc Oil activated fuel injector control with delay plunger
DE102004053421A1 (en) * 2004-11-05 2006-05-11 Robert Bosch Gmbh Fuel injector
JP2007154797A (en) * 2005-12-06 2007-06-21 Denso Corp Fuel injection device
EP2405121B1 (en) * 2010-07-07 2013-10-09 C.R.F. Società Consortile per Azioni Fuel-injection system for an internal-combustion engine
EP3069002A1 (en) 2013-11-15 2016-09-21 Sentec Ltd Control unit for a fuel injector
CN114109683B (en) * 2021-11-30 2023-02-10 中船动力研究院有限公司 Low-carbon fuel injection device and engine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2152153A (en) * 1983-12-30 1985-07-31 Cummins Engine Co Inc Positive displacement fuel injection system
EP0320462A1 (en) * 1987-12-09 1989-06-14 WEBER S.r.l. A fuel-injection pump with variable cylinder capacity for diesel engine injection systems
EP0450891A1 (en) * 1990-03-29 1991-10-09 Cummins Engine Company, Inc. Fuel injector for an internal combustion engine
US5505384A (en) * 1994-06-28 1996-04-09 Caterpillar Inc. Rate shaping control valve for fuel injection nozzle
GB2312715A (en) * 1996-05-03 1997-11-05 Caterpillar Inc Two-stage pumping plunger for rate shaping in a fuel injector

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2179354A (en) * 1935-08-07 1939-11-07 Super Diesel Tractor Corp Pump
US3614944A (en) * 1969-09-11 1971-10-26 Ord Systems Ltd Engine apparatus
US3965875A (en) * 1973-07-02 1976-06-29 Cummins Engine Company, Inc. Fuel injection system for diesel engines
JPS61272461A (en) * 1985-05-29 1986-12-02 Toyota Motor Corp Fuel injection valve for internal-combustion engine
DE3742831A1 (en) * 1987-12-17 1989-07-13 Kloeckner Humboldt Deutz Ag TWO-POINT SPRAY ADJUSTER
US5033442A (en) * 1989-01-19 1991-07-23 Cummins Engine Company, Inc. Fuel injector with multiple variable timing
US5076240A (en) * 1990-06-07 1991-12-31 Cummins Engine Company, Inc. Articulated open nozzle high pressure unit fuel injector
US5143291A (en) * 1992-03-16 1992-09-01 Navistar International Transportation Corp. Two-stage hydraulic electrically-controlled unit injector
DE4311627B4 (en) * 1993-04-08 2005-08-25 Robert Bosch Gmbh Fuel injection device for internal combustion engines
US5333786A (en) * 1993-06-03 1994-08-02 Cummins Engine Company, Inc. Fuel injection device for an internal combustion engine
DE4417950C1 (en) * 1994-05-21 1995-05-11 Mtu Friedrichshafen Gmbh Injection system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2152153A (en) * 1983-12-30 1985-07-31 Cummins Engine Co Inc Positive displacement fuel injection system
EP0320462A1 (en) * 1987-12-09 1989-06-14 WEBER S.r.l. A fuel-injection pump with variable cylinder capacity for diesel engine injection systems
EP0450891A1 (en) * 1990-03-29 1991-10-09 Cummins Engine Company, Inc. Fuel injector for an internal combustion engine
US5505384A (en) * 1994-06-28 1996-04-09 Caterpillar Inc. Rate shaping control valve for fuel injection nozzle
GB2312715A (en) * 1996-05-03 1997-11-05 Caterpillar Inc Two-stage pumping plunger for rate shaping in a fuel injector

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110650762A (en) * 2017-04-19 2020-01-03 梅特罗诺姆保健公司 Inserter for analyte sensor
US11389089B2 (en) 2017-04-19 2022-07-19 Metronom Health, Inc. Inserter for analyte sensors
CN110650762B (en) * 2017-04-19 2023-08-11 梅特罗诺姆中国知识产权控股公司 Inserter for analyte sensor

Also Published As

Publication number Publication date
US5655501A (en) 1997-08-12
GB2312932A (en) 1997-11-12
GB9707154D0 (en) 1997-05-28
JPH1047194A (en) 1998-02-17

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20090408